Nudge;
Those two screws in the bottom of the frame truly have nothing to do with the type of cocking hook the gun has. The lower arm of the mainspring, which also actuated the hammers, came to rest on the upper ends of those screws. The Lefever was advertized as having rebounding hammers, though they were not true rebounders as we normally think of the term. The expansion of the mainspring was stopped just as the hammers reached the firing pins & had enough inertia to fire the shell. The pins were thus not held into the dents in the primers by spring tension, thus avoiding the "Locking" of the gun be the firing pins. These screws could be adjusted to set the exact point at which the spring was stopped. On later guns these screws were eliminated & the guns built with a preset stopping point.
I do not know the exact point in time this took place. My rod cocker & two hook guns have then, my large hook guns don't. I do not have a small hook gun. The screws would be just as useful with one type of cocking as the other, have nothing to do with the cocking.
